Core: Make sure cache is available before trying to use it

[ho1234c]

I encountered error as below. so I could not start story book dev server. I try remove and install node_moudles many time but still broken.

info => Loading presets
info => Loading presets
info => Loading 1 config file in "libs/design-system/.storybook"
info => Loading 6 other files in "libs/design-system/.storybook"
ERR! TypeError: Cannot read property 'remove' of undefined
ERR!     at startManager (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:288:21)
ERR!     at async Promise.all (index 1)
ERR!     at async storybookDevServer (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:426:28)
ERR!     at async Object.buildDevStandalone (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/build-dev.js:306:33)
ERR!  TypeError: Cannot read property 'remove' of undefined
ERR!     at startManager (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:288:21)
ERR!     at async Promise.all (index 1)
ERR!     at async storybookDevServer (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:426:28)
ERR!     at async Object.buildDevStandalone (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/build-dev.js:306:33) {
ERR!   stack: "TypeError: Cannot read property 'remove' of undefined\n" +
ERR!     '    at startManager (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:288:21)\n' +
ERR!     '    at async Promise.all (index 1)\n' +
ERR!     '    at async storybookDevServer (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/dev-server.js:426:28)\n' +
ERR!     '    at async Object.buildDevStandalone (/Users/jonghojeong/source/dano-frontend/node_modules/@storybook/core/dist/server/build-dev.js:306:33)'
ERR! }

What I did

I think file system cache is fragile. in my case, don't know why, but the cache is broken.
so I add logic to prevent non-execution in the event of cache problem.
It is nit change but since I spent a lot of time to find solution, I hope it helps someone.

and I modified eslint rule to pass commit lint.

[ghengeveld]

Good call @ho1234c! What's up with the changes to .eslintrc.js? Those seem completely unrelated.

[ghengeveld]

Good call. I left some remarks.

[ho1234c]

I see. optional chaining is best..!

[ghengeveld]

LGTM

Thanks for contributing and pulling it through!